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Optical metrology for efficient manufacturing of high-quality VCSELs
/en/research/research-news/optical-metrology-for-efficient-manufacturing-of-high-quality-vcsels
Using in-situ and ex-situ optical metrology, we have optimized VCSEL growth and etching processes. This ensures precise layer control, aligning emission wavelengths efficiently and enabling “first…
Radiative and Nonradiative Recombination Processes in AlGaN Quantum Wells on Epitaxially Laterally Overgrown AlN/Sapphire from 10 to 500 K
/en/research/publications/radiative-and-nonradiative-recombination-processes-in-algan-quantum-wells-on-epitaxially-laterally-overgrown-alnsapphire-from-10-to-500-k
Radiative and nonradiative recombination processes are investigated in the temperature range from 10 to 500 K for AlGaN quantum wells on epitaxially laterally overgrown AlN/sapphire templates.…
Investigation of degradation dynamics of 265 nm LEDs assisted by EL measurements and numerical simulations
/en/research/publications/investigation-of-degradation-dynamics-of-265-nm-leds-assisted-by-el-measurements-and-numerical-simulations
We studied four AlGaN-based 265 nm LEDs with increasing QW thickness (1.4, 3, 6 and 9 nm) during a constant current stress at 100 A cm−2. We focused our attention on the parasitic…
Ultraviolet‑B Resonant-Cavity Light-Emitting Diodes with Tunnel Junctions and Dielectric Mirrors
/en/research/publications/ultraviolet-b-resonant-cavity-light-emitting-diodes-with-tunnel-junctions-and-dielectric-mirrors
We demonstrate the first electrically injected AlGaN-based ultraviolet-B resonant-cavity light-emitting diode (RCLED). The devices feature dielectric SiO2/HfO2 distributed Bragg reflectors enabled by…
Vertical GaN Devices: Reliability Challenges and Lessons Learned from Si and SiC
/en/research/publications/vertical-gan-devices-reliability-challenges-and-lessons-learned-from-si-and-sic
We discuss recent advancements in the development of vertical GaN devices, and the related reliability challenges. Key results indicate that: (i) vertical GaN devices can show high performance, low…
INTENTAS - an entanglement-enhanced atomic sensor for microgravity
/en/research/publications/intentas-an-entanglement-enhanced-atomic-sensor-for-microgravity
The INTENTAS project aims to develop an atomic sensor utilizing entangled Bose-Einstein condensates (BECs) in a microgravity environment. This key achievement is necessary to advance the capability…
Advanced nano-characterization using STEM-CL / STEM-EBIC
/en/events/advanced-nano-characterization-using-stem-cl-stem-ebic
Frank Bertram, Gordon Schmidt Otto-von-Guericke-Universität Magdeburg
Skilled Workforce for Microelectronics: Microtec Academy
/en/cooperations/skilled-workforce-for-microelectronics-microtec-academy
The BMBF-funded flagship project “Skilled workers for microelectronics: skills4chips” is developing innovative qualifications to meet the growing demand for skilled workers in the chip industry. A…
We are leaving X
/en/media-center/press-releases/we-are-leaving-x
We are suspending our activities on the social media platform X with immediate effect. This step is in line with a decision made by the Leibniz Association.
Human-Centric Concept for a Reconfigurable Robotic System Enabling Low-Volume Assembly of Photonic and Quantum Modules
/en/research/publications/human-centric-concept-for-a-reconfigurable-robotic-system-enabling-low-volume-assembly-of-photonic-and-quantum-modules
This paper presents a novel concept for a reconfigurable robotic system specifically designed to meet the demands of hybrid integration for miniaturized photonic and quantum System-in-Packages…